diff --git a/scripts/events/lib/highlight.js b/scripts/events/lib/highlight.js
index 128dc1f..86d61cb 100644
--- a/scripts/events/lib/highlight.js
+++ b/scripts/events/lib/highlight.js
@@ -1,8 +1,10 @@
+'use strict';
+
 const fs = require('fs');
 const path = require('path');
 
-function resolve(package) {
-  return path.dirname(require.resolve(`${package}/package.json`));
+function resolve(name) {
+  return path.dirname(require.resolve(`${name}/package.json`));
 }
 
 function highlightTheme(name) {
diff --git a/scripts/helpers/font.js b/scripts/helpers/font.js
index 41a9586..27527f7 100644
--- a/scripts/helpers/font.js
+++ b/scripts/helpers/font.js
@@ -2,6 +2,7 @@
 
 'use strict';
 
+// https://developers.google.com/fonts/docs/getting_started
 hexo.extend.helper.register('next_font', function() {
   const config = this.theme.font;
 
@@ -18,7 +19,7 @@ hexo.extend.helper.register('next_font', function() {
     }
   });
 
-  fontFamilies = fontFamilies.map(name => name.trim() + fontStyles);
+  fontFamilies = fontFamilies.map(name => name.trim().replace(/\s/g, '+') + fontStyles);
   fontFamilies = [...new Set(fontFamilies)].join('|');
 
   // Merge extra parameters to the final processed font string
diff --git a/scripts/tags/video.js b/scripts/tags/video.js
index 57b7ea2..3452ebf 100644
--- a/scripts/tags/video.js
+++ b/scripts/tags/video.js
@@ -1,5 +1,5 @@
 /**
- * video.js | https://theme-next.js.org/docs/tag-plugins/video
+ * video.js | https://theme-next.js.org/docs/tag-plugins/
  */
 
 /* global hexo */
diff --git a/source/js/local-search.js b/source/js/local-search.js
index da5d276..5e5ae15 100644
--- a/source/js/local-search.js
+++ b/source/js/local-search.js
@@ -219,7 +219,7 @@ document.addEventListener('DOMContentLoaded', () => {
             url    : element.querySelector('url').textContent
           };
         }) : JSON.parse(res);
-        // Only match articles with not empty titles
+        // Only match articles with non-empty titles
         datas = datas.filter(data => data.title).map(data => {
           data.title = data.title.trim();
           data.content = data.content ? data.content.trim().replace(/<[^>]+>/g, '') : '';